public static void SetData <T>(
this IPlatformBuffer buffer, int offset, ref T data, BufferSetDataMode mode) where T : unmanaged
{
fixed(T *p = &data)
{
buffer.SetData(offset, new IntPtr(p), sizeof(T), mode);
}
}
public void SetData(int offset, IntPtr data, int size, BufferSetDataMode mode)
{
if (dynamic)
{
SetDataDynamic(offset, data, size, mode);
}
else
{
SetDataStatic(offset, data, size);
}
}
public void SetData(int offset, IntPtr data, int size, BufferSetDataMode mode)
{
GL.BindBuffer(GLTarget, GLBuffer);
GLHelper.CheckGLErrors();
if (mode == BufferSetDataMode.Discard)
{
GL.BufferData(GLTarget, Size, IntPtr.Zero, GLUsage);
GLHelper.CheckGLErrors();
}
GL.BufferSubData(GLTarget, new IntPtr(offset), size, data);
GLHelper.CheckGLErrors();
Context.InvalidateBufferBinding(BufferType);
}
private void SetDataDynamic(int offset, IntPtr data, int size, BufferSetDataMode mode)
{
if (mode == BufferSetDataMode.Discard)
{
backingBuffer.DiscardSlice(WriteFenceValue);
WriteFenceValue = 0;
}
else
{
if (context.NextFenceValue <= WriteFenceValue)
{
context.Flush();
}
context.WaitForFence(WriteFenceValue);
}
var dstData = backingBuffer.MapSlice() + offset;
try {
GraphicsUtility.CopyMemory(dstData, data, size);
} finally {
backingBuffer.UnmapSlice();
}
}
public static void SetData <T>(
this IPlatformBuffer buffer, int offset, T[] data, int startIndex, int count, BufferSetDataMode mode) where T : unmanaged
{
fixed(T *p = &data[startIndex])
{
buffer.SetData(offset, new IntPtr(p), count * sizeof(T), mode);
}
}
public static void SetData <T>(
this IPlatformBuffer buffer, int offset, T[] data, BufferSetDataMode mode) where T : unmanaged
{
SetData(buffer, offset, data, 0, data.Length, mode);
}
